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5 Communications Data for Modbus
5-1
Variable Area (Setting Range) List
• Four-byte Mode
One element uses 4 bytes of data (H'00000000 to H'FFFFFFFF), so specify two-element units.
Reading and writing in 4-byte units is executed by specifying an even address and specifying the
number of elements in multiples of 2.
• Two-byte Mode
One element uses 2 bytes of data (H'0000 to H'FFFF), so specify one-element units. Reading and
writing in 2-byte data units is executed by specifying 1-element units.
The following table lists the variable area. Items expressed in hexadecimal in the "Setting (monitor)
value" column are the setting range in the Modbus specifications. Values in parentheses "()" are the
actual setting range.
When there is a section reference for a setting item, refer to that reference for details.
Address
Parameter name
Four-byte
Two-byt
mode
e mode
0000
2000
PV
0002
2001
*1*2
Status 1
0004
2002
Internal Set Point
0006
2003
Heater Current 1 Value
Monitor
0008
2004
MV Monitor (Heating)
000A
2005
MV Monitor (Cooling)
0106
2103
Set Point
0108
2104
Alarm Value 1
010A
2105
Alarm Value Upper Limit
1
010C
2106
Alarm Value Lower Limit
1
010E
2107
Alarm Value 2
0110
2108
Alarm Value Upper Limit
2
0112
2109
Alarm Value Lower Limit
2
0404
2402
PV
0406
2403
Internal Set Point
0408
2404
Multi-SP No. Monitor
040C
2406
*1*2
Status 1
040E
2407
*3
Status 1
0410
2408
*1*2
Status 2
0412
2409
*1*3
Status 2
0420
2410
Decimal Point Monitor
0422
2411
Control Output 1 ON/OFF
Count Monitor
0424
2412
Control Output 2 ON/OFF
Count Monitor
*1
Not displayed on the Controller display.
*2
In 2-byte mode, the rightmost 16 bits are read.
*3
In 2-byte mode, the leftmost 16 bits are read.
5 - 2
Setting (monitor) value
Temperature: Use the specified range for each sensor.
Analog: Scaling lower limit − 5% FS to Scaling upper limit + 5% FS
Refer to 5-2 Status for details.
*1
SP lower limit to SP upper limit
H'00000000 to H'00000226 (0.0 to 55.0)
Standard:
Heating and cooling:
H'00000000 to H'0000041A (0.0 to 105.0)
SP lower limit to SP upper limit
H'FFFFF831 to H'0000270F (−1999 to 9999)
H'FFFFF831 to H'0000270F (−1999 to 9999)
H'FFFFF831 to H'0000270F (−1999 to 9999)
H'FFFFF831 to H'0000270F (−1999 to 9999)
H'FFFFF831 to H'0000270F (−1999 to 9999)
H'FFFFF831 to H'0000270F (−1999 to 9999)
Temperature: Use the specified range for each sensor.
Analog: Scaling lower limit − 5% FS to Scaling upper limit + 5% FS
SP lower limit to SP upper limit
*1
H'00000000 to H'00000007 (0 to 7)
Refer to 5-2 Status for details.
Refer to 5-2 Status for details.
Refer to 5-2 Status for details.
Refer to 5-2 Status for details.
H'00000000 to H'00000003 (0 to 3)
H'00000000 to H'0000270F (0 to 9999)
H'00000000 to H'0000270F (0 to 9999)
E5@D Digital Temperature Controllers Communications Manual (H225)
H'FFFFFFCE to H'0000041A (−5.0 to 105.0)
H'00000000 to H'0000041A (0.0 to 105.0)
Level
Operation
Advanced
function
setting
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